function imageUtil (originalWidth, originalHeight) {
  let imageSize = {}
  const res = tt.getSystemInfoSync();
  const windowWidth = res.windowWidth
  imageSize.x = 0
  imageSize.y = 0
  imageSize.windowWidth = windowWidth
  imageSize.imageWidth = originalWidth
  imageSize.imageHeight = originalHeight
  if (originalWidth > windowWidth) {
    imageSize.imageWidth = windowWidth
    imageSize.imageHeight = windowWidth * originalHeight / originalWidth
  } else {
    imageSize.x = (windowWidth - originalWidth) / 2
  }
  return imageSize
}

module.exports = {
  imageUtil: imageUtil
}
